Web Services Directory

Viewing 1 to 582 of 582 APIs
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FlickrPhoto sharing servicePhotos632     
foursquareSocial networking and city explorationSocial107     
GeoNamesGeographic name and postal code lookupReference89     
LinkedInBusiness social networking platformSocial59     
FreebaseCommunity driven open databaseDatabase56     
InstagramMobile photo sharing servicePhotos54     
Facebook GraphFacebook Social Graph APISocial51     
Panoramiophoto upload site with organizer and geolocationPhotos50     
Bit.lyURL shortening serviceInternet37     
SoundCloudSoundCloud is a social audio platformMusic29     
ShopzillaOnline shopping contentShopping27     
Echo NestMusic services for professionalsMusic24     
EtsyHandmade product marketplaceShopping22     
Yahoo Query LanguageQuery language platform for Yahoo servicesDatabase19     
NetvibesPersonalized home page with widgetsWidgets17     
DonorsChooseAn online charity connecting you to classrooms in needEducation16     
DropboxOnline storage providerStorage12     
COLOURloversNamed colors and color palette servicesTools10     
GitHubSource code repositoryTools10     
EvriRecommendations and semantic search serviceRecommendations9     
KloutSocial metrics serviceInternet9     
Best Buy BBYOpen ProductseCommerce shopping servicesShopping8     
KivaPerson-to-person micro-lending serviceFinancial8     
SeatwaveOnline marketplace for live eventsEntertainment8     
BillboardMusic chart serviceMusic7     
The Movie DBMovie, TV, cast, crew and image databaseEntertainment7     
GenabilityElectricity price data serviceReference6     
Google Social GraphSearch service for finding social connectionsSocial6     
TweetmemeTwitter link popularity serviceSocial6     
AlchemyAPIArtificial Intelligence as a Service Tools5     
BandsintownMusic concerts and recommendations serviceMusic5     
HyvesSocial networking and events serviceSocial5     
LongURLURL expanding serviceInternet5     
NPRUS National Public Radio News5     
ZapposOnline retail storeShopping5     
AddThis Sharing EndpointsContent sharing serviceInternet4     
Biblia.comOnline bible reference serviceReference4     
BlankSlateWeb App Building BlocksDatabase4     
MapBoxMapping ServiceMapping4     
NestoriaUK real estate listingsReal Estate4     
SimpleGeoLocation services platformMapping4     
Viddler Online video serviceVideo4     
VideoSurfVideo search serviceVideo4     
World Weather OnlineWorld Weather OnlineWeather4     
Yes Broadcast DBRadio station search, now-playing, logs and chartsMusic4     
AddThis ServicesAddThis Integration ServiceInternet3     
DribbbleWebdesign showcase Other3     
Edmunds.com VehicleAutomobile informationReference3     
ErgastMotor racing data serviceSports3     
Face.comFace RecognitionPhotos3     
InfoChimps SocialTwitter Metrics and AnalyticsSocial3     
MotorsportReg.comMotorsports events and calendar serviceSports3     
New York Times Campaign FinanceU.S. campaign finance dataGovernment3     
Notifixio.usXMPP pubsub notification platformInternet3     
PosterousContent sharing serviceSocial3     
YolinkSemantic searchSearch3     
zanoxInternet monetization servicesAdvertising3     
ZendeskHelp desk serviceInternet3     
Big Huge ThesaurusThesaurus lookup servicesReference2     
Bing Maps RoutesMapping route creation serviceMapping2     
Brighter Planet Emission EstimatesReal-time carbon footprint estimatesOther2     
CampBXBitcoin Trading ServiceFinancial2     
ClickyWeb site analyticsInternet2     
Garmin MotionBasedGPS services and mappingSports2     
Google Page Speed OnlineWebsite speed scores and optimizationInternet2     
HAMweather AerisWeather data serviceWeather2     
Infochimps IP Intelligence GeolocationData mining toolInternet2     
InstapaperBookmark long web pagesBookmarks2     
Issuu SearchOnline publication serviceFile Sharing2     
MapQuest GeocodingForward and Reverse Geocoding ServiceMapping2     
MyWotWebsite reputation serviceSecurity2     
PlancastSocial event serviceSocial2     
PlaymeMusic streaming, download, radio and playlist serviceMusic2     
PLoS SearchScientific literature search serviceReference2     
AddThis Analytics Content sharing analytics data serviceInternet1     
AngelListStartup financing communitySocial1     
APIfyCreate APIs from structured web dataInternet1     
BehanceCreative portfolio serviceOther1     
BoxcarSocial messaging aggregation serviceSocial1     
BrightcoveVideo publishing serviceVideo1     
CloudvoxVoice application platformTelephony1     
Coderwall ProfileUser profile data serviceSocial1     
DeezerMusic streaming serviceMusic1     
deviantARTSocial network for artistsSocial1     
ElanceOnline job marketplaceJob Search1     
FCCU.S. Communications Data ServiceGovernment1     
GeolenzReverse geocoding serviceTools1     
Google Reader Subscriber StatisticsRSS feed statisticsBlogging1     
GovDataSwedish Government tax expenditure dataGovernment1     
Idescat Population SearchPopulation searchSearch1     
idiomagMusical artist information serviceMusic1     
IP-API.com GeolocationIP address lookup serviceTools1     
iRailBelgium train schedulesTransportation1     
Library of Congress Prints & PhotographsImage search serviceMedia Search1     
Long URL PleaseShortened URL expanding serviceInternet1     
MapQuest Open DirectionsDriving directions serviceMapping1     
Marvel ComicsComic book metadataEntertainment1     
Metro RealtimeLos Angeles Metro real-time vehicle location Transportation1     
Metro Transit NexTripMinnesota Transit information serviceTransportation1     
NOAA ERDDAPOceanic science data serviceScience1     
NumbersNumber reference serviceReference1     
Open Government Data InitiativeGovernment data resource from MicrosoftGovernment1     
PubNubPush messaging serviceMessaging1     
RakutenJapanese shopping web serviceShopping1     
RhymeBrainOnline rhyming dictionaryDictionary1     
ScraperWikiScreen scraper wikiTools1     
SpringerScientific journal and books databaseReference1     
TheyWorkForYouTrack the UK ParliamentGovernment1     
This Is My JamMusic recommendation and sharing serviceMusic1     
Tiny GeoCoderGeocoding servicesMapping1     
TweepSearchTwitter profile search servicesSocial1     
WikiLocationFind Wikipedia articles based on locationWiki1     
WMATADC Transit ServiceGovernment1     
WookmarkImage collection and sharing serviceSocial1     
Wordstream Keyword ToolKeyword suggestion serviceSearch1     
World BankWorldwide indicators, business, and photo databasesReference1     
Yahoo YUIWeb visualization and layout frameworkInternet1     
ZootoolOnline Bookmarking and Collecting ServiceBookmarks1     
24 Pull RequestsAnnual pull request sending eventEvents0     
42mattersAndroid app databaseSearch0     
A State of TranceTrance and progressive rock radio show informationMusic0     
Aalto UniversityAalto University course portal informationEducation0     
Acrostic.me TrendingBible poetry feed serviceFeeds0     
Active RegOnlineEvent Planning ServiceProject Management0     
AddressFinderNew Zealand address information servicesMapping0     
Adobe PhoneGap BuildCloud-based app compilerInternet0     
AdzunaUK Advertising ServiceAdvertising0     
AIDS.gov Service Provider LocatorHIV/AIDS testing and care information serviceGovernment0     
AlterGeoLocal recommendation serviceSocial0     
AltmetricScholarly article discussion trackerEducation0     
Android: Netrunner Card DatabaseNetrunner card game card databaseGames0     
AnswerHubEnterprise Q&A platformAnswers0     
AOL CalendarOnline calendar serviceCalendar0     
AORecipeBookAnarchy Online tradeskills recipe botGames0     
ApertiumTranslation ServiceTools0     
App55Online payment servicePayment0     
art.syArtwork information discovery serviceSearch0     
Ask AMEENatural language query serviceSearch0     
Astroboa Resource Information Management ServiceEnterprise0     
AT&T M2XM2M application infrastructure serviceBackend0     
AudiobooAudio sharing platformMessaging0     
Audiosocket MaaSMusic licensing agencyMusic0     
Avatax Sales TaxSales tax management serviceFinancial0     
AYLIEN Text AnalysisText analysis serviceTools0     
Barium LiveBusiness process management serviceEnterprise0     
BayWeb Cloud-EMSRemote HVAC control serviceTools0     
Bazaarvoice PlatformSocial marketing platformSocial0     
BentioMicroblogging ServiceBlogging0     
Best Buy BBYOpen CategoriesShopping categorization serviceShopping0     
Best Buy BBYOpen ReviewsShopping reviews serviceShopping0     
BF4 StatsBattlefield 4 game statisticsGames0     
bipioAPI pipelining serviceFeeds0     
Bitacoras.comSpanish social blog networkBlogging0     
BitMyMoneyBitcoin Payment and Holding ServicePayment0     
Bizo BizAudienceInternet business traget serviceOther0     
Black Lotus Project Price TickerMagic: the Gathering card price tickerGames0     
BLAM AdsContent locking advertising serviceAdvertising0     
BlipfotoPhoto sharing servicePhotos0     
blipprRecommendations serviceRecommendations0     
BlobbrSocial polling serviceSocial0     
BongoIowa cities transit dataTransportation0     
Bramus Simple REST API ExplorerREST API endpoint exploration serviceTools0     
Brazil CKANBrazil open government dataGovernment0     
BugrocketBug tracking toolTools0     
BugzillaBug-tracking serviceTools0     
BundesTaggerGerman Parliamentary proceedingsGovernment0     
Burning ManEvent databaseEvents0     
Business TexterCustomer Service Text ServiceMessaging0     
BuzzzyGoogle Buzz Search EngineSearch0     
CadmusSocial media stream management serviceSocial0     
CallookUS amateur radio callsign lookupReference0     
Camera PlusiPhone photo applicationPhotos0     
CEERNConservation and Environment Resource DatabaseReference0     
CENSUS.IRE.ORG2010 census data access serviceGovernment0     
chartbeatWebsite analytics serviceInternet0     
CheveretoImage hosting serviceMedia Management0     
Chicago Boundary ServiceIllinois geographic boundary dataMapping0     
CineworldUK cinema informationEntertainment0     
CIR VA BacklogVeterans Affairs benefits dataGovernment0     
CiteULikeCitation management serviceReference0     
City of Helsinki Service MapHelsinki information and service resource mapGovernment0     
City of NanaimoNanaimo, B.C., datasetsGovernment0     
CityBikesBike sharing network information serviceTransportation0     
Civic Commons MarketplaceOpen government data database and sharing platformGovernment0     
CKANData portal platform serviceInternet0     
CKAN Czech RepublicCzech Republic open government dataGovernment0     
CKAN IrelandIreland open government dataGovernment0     
CKAN ItalyItalian open government dataGovernment0     
CKAN NorwayNorway open government dataGovernment0     
Click A TaxiTaxi cab booking serviceTransportation0     
Climate CountsCorporate climate change monitoring serviceOther0     
CloudFlare Client InterfaceContent delivery networkInternet0     
CloudMade GeocodingForward and Reverse Geocoding ServiceMapping0     
CloudMade NavEngineDriving directions serviceMapping0     
Club SpeedKart racing management solutionsSports0     
cnFOLChinese microblogging serviceBlogging0     
CodebitsCodebits Conference Information ToolsEvents0     
CodepointsUnicode Standard character dataReference0     
Coderbits ProfileSocial and professional network for developers and designersSocial0     
Comic VineComic book reference databaseOther0     
ConvoreReal-time group chat applicationChat0     
Copy2Contact Online contact entry and data parsing serviceInternet0     
CourtListenerLegal Opinion ArchiveDatabase0     
Cruvee SocialSocial media search for wine industrySearch0     
Cruvee Wine SearchWine industry search serviceSearch0     
CS50Harvard campus informationEducation0     
CS50 HarvardEventsHarvard Events CalendarEvents0     
DailymileThe Social Workout PlatformSports0     
Data Greater ManchesterManchester, England open government dataGovernment0     
Data Science ToolkitOpen Source tools for scienceReference0     
Datadotgc.caCanadian open government dataGovernment0     
DataGov.ruRussian open government dataGovernment0     
DataSiftReal-Time Social Data MiningSocial0     
dataTXT by SpazioDatiData and text extraction and linking serviceTools0     
Daum CafeOnline community servicesSocial0     
Daum CalendarCalendar servicesCalendar0     
Daum Context KeywordContextual keyword extraction serviceTools0     
Daum EventsMovie and festival search serviceEvents0     
Daum SearchSearch servicesSearch0     
Daum TodayMicro blogging serviceBlogging0     
deCarta MapSearch EngineLocal search servicesMapping0     
DespegarLatin America travel siteTravel0     
deutschlandGerman elected officials information serviceGovernment0     
Device42Data Management ServiceDatabase0     
DomainsBotDomain name suggestion serviceInternet0     
DozukiDocumentation softwareProject Management0     
Dublin Bus Real TimeDublin public transport information serviceTransportation0     
Duck Duck GoInternet search engineSearch0     
Dweet.ioData Sharing ServiceSocial0     
EaupenFree drinking water location service for ParisTravel0     
Edmunds.com DealerVehicle dealer informationDatabase0     
Edmunds.com InventorySpecific automobile information via VINReference0     
EinzteinSearch API for Einztein Social Learning NetworkSocial0     
Elev.atText and Excel conversion to XML toolTools0     
eLifeBiological sciences journal access serviceScience0     
eMusicMusic and Audiobook Search ServiceMusic0     
Encyclopedia of LifeBiology Encyclopedia Reference0     
EnstoreCustom Enstore Client CreationShopping0     
EntirewebWeb search serviceSearch0     
Equestrian BeatsMy Little Pony themed music publishing siteMusic0     
Esri Community AnalystApplication Building ServiceMapping0     
European VAT Number Validation European Union value added tax number validationTools0     
EventfindaNew Zealand events serviceEvents0     
EventPointEvent planning and publicizing servicesEvents0     
EverytimeMusic and video clip saving and sharing serviceBookmarks0     
Exchange Rate LabExchange Rate ServiceFinancial0     
FamilySearchGenealogical search and family tree serviceOther0     
FAOdataWorldwide food and agriculture dataDatabase0     
FavatarFavicon retrieval serviceMedia Search0     
Faves.comSocial BookmarkingBookmarks0     
FeaturePics Stock photography providerPhotos0     
FederalRegister.govOpen source government dataGovernment0     
File MD5MD5 file hash serviceUtility0     
FilleramaThemed placeholder text generatorUtility0     
FIMFictionMy Little Pony fan fiction and social siteSocial0     
FishbansMinecraft ban systemGames0     
FLG 360Lead management, CRM, and marketing serviceEnterprise0     
Flickr Real-TimeRealtime photo updates from FlickrPhotos0     
FluidinfoOnline storage and search platform for metadataSearch0     
FluxiomOnline File Storage and ManagementStorage0     
follow costFind the follow cost of a Twitter accountSocial0     
FormhubForm creation and data collection serviceTools0     
foursquare Merchantfoursquare merchant platformShopping0     
Free Music ArchiveMP3 archiveMusic0     
GEMETMulti-language thesaurus management serviceReference0     
Geobytes Ajax Autocomplete Cities ListAutocompleting list of cities and city informationTools0     
Geognos World CountriesWorldwide geocoding information serviceMapping0     
GeoMakerGeo enrichment platformMapping0     
GeoSmartNew Zealand geospatial and mapping servicesMapping0     
getBibleMultilingual Bible verse serviceOther0     
Ghana Stock ExchangeGhana Stock ExchangeFinancial0     
Ghent University Academic BibliographyUniversity publication informationEducation0     
Giant BombDatabase of game informationGames0     
Gifts.comGift recommendation serviceShopping0     
GigaToolsMusic performance event information platformEvents0     
GipuzkoaSpanish province government dataGovernment0     
GitHub JobsComputer-related job listing serviceJob Search0     
GlimtNorway event aggregation serviceEvents0     
GlitchOnline massively multiplayer gameGames0     
GlosbeMultilingual online dictionary and translation memoryDictionary0     
Go.USA.govGovernment domain URL shortenerGovernment0     
goEmerchantOnline payment servicePayment0     
Google Compute EngineGoogle based virtual machine serviceBackend0     
Google DoubleClick Ad Exchange SellerAdvertising campaign management serviceAdvertising0     
Google Enterprise License ManagerLicense ManagerEnterprise0     
GoSquaredReal time web analyticsInternet0     
gPodderPodcast retrieval serviceTools0     
GroupcentricUser engagement service for applicationsSocial0     
GW2SpidyGuild Wars 2 marketplaceGames0     
Hathi Trust Data DistributionLibrary catalog search serviceReference0     
HathiTrust VolumesLibrary catalogue information retrieval serviceEducation0     
HealthCare.govU.S. health insurance plans and information serviceMedical0     
HearstMagazine article content searchNews0     
HeelloMicroblogging serviceSocial0     
Helsinkikanava Open DataHelsinki city council meeting information and recordingsGovernment0     
Hitchwiki MapsHitchhiking location reviewsMapping0     
HTTP Redirect Chain EnumeratorSearch Engine Optimization toolUtility0     
Hyves DataDutch social networking siteSocial0     
IconFinderGraphic icon and image searchSearch0     
IdeaScaleOnline Community Data ToolsSocial0     
Idescat Advance Release CalendarIdescat publications calendarCalendar0     
Idescat Catalan and Spanish Indicators Economic indicator serviceFinancial0     
Idescat Municipality in FiguresStatistical information on Catalan municipalitiesGovernment0     
Idescat RectificationsRectifications registry lookup serviceReference0     
Illinois 2010 School Report CardsIllinois public school grade reporting serviceEducation0     
Influence Explorer TextTextual analysis toolGovernment0     
InfoChimps IP Intelligence DemographicsCensus data based on IP addressReference0     
Infunl Web AnalyticsWeb analytics and tracking serviceInternet0     
InKnowledge Taxi Fare CalculatorTaxi fare estimation serviceTransportation0     
International Aid Transparency InitiativeAid spending indexGovernment0     
Interserve Job OpeningsMinistry jobs feed serviceFeeds0     
Interstate DevelopersProject development roadmaps toolProject Management0     
ioBridgeRetrieve module feed URLsTools0     
IODA OpenOnline Music Distribution DatabaseMusic0     
ipinfo.ioIP geolocation and information servicesMapping0     
IPv4Free IP Lookup APITools0     
Is EmailEmail address validation serviceEmail0     
ItsThisForThatRandom startup idea generatorOther0     
Ity.imURL shortening serviceUtility0     
Jack MediaAustralian daily deals networkShopping0     
JailBaseMugshot and Arrest Information for County JailsSearch0     
Johns Hopkins University HubResearch article retrieval serviceEducation0     
json-lipsumPlaceholder text generatorUtility0     
Junction Networks Web ServicesBusiness VoIP ServicesTelephony0     
JuxPersonal multimedia showcasing serviceBlogging0     
Khan AcademyOnline learning and instruction platformEducation0     
KickoffLabsViral referral page service Social0     
KipptBookmarking applicationBookmarks0     
KIT VideoVideo storage, encoding, and broadcast platformVideo0     
KPI DashboardBusiness information serviceEnterprise0     
KundoCustomer service and feedback serviceEnterprise0     
KwoutWebsite quote with images toolTools0     
LairOutEvent Search ServiceEvents0     
Lauerfac.esChristopher Lauer avatar platformFile Sharing0     
LetsMTLanguage translation serviceTools0     
LibrariousPersonal collection catalogPIM0     
LifeDesksOnline science and taxonomy communityReference0     
LittleShoot Labs MIMEFile type reference serviceTools0     
LivestreamVideo Streaming ToolsVideo0     
LobbyFacts DataEuropean Union lobbyist information servicePolitics0     
logentriesLog collection and analysis toolBackend0     
LoggrWeb application analytics serviceTools0     
LuzmeEbook price data engineShopping0     
LYRICSnMUSICMusic and song lyric search engine compilerMusic0     
MalmöfestivalenMalmö Festival schedule and informationEvents0     
map4appMap integration serviceMapping0     
MapAlerterIrish multi-channel alert serviceMessaging0     
MapQuest DirectionsDriving directions serviceMapping0     
MapQuest Nominatim SearchGeographic search serviceMapping0     
MapQuest Open ElevationElevation data serviceMapping0     
MapQuest Open GuidanceMobile navigation serviceMapping0     
MapQuest SearchGeographic search serviceMapping0     
MapQuest TrafficTraffic report serviceMapping0     
Markit DataMarket Data ServiceFinancial0     
MasheryAPI delivery and management serviceInternet0     
MesagraphSocial TV content aggregatorSocial0     
MetaCPANPerl module search serviceInternet0     
Meteor SolutionsSocial marketing engagement platform Advertising0     
MetroLyricsMusic lyric databaseMusic0     
Mgnet.me shortenertorrent magnet URL shortening toolFile Sharing0     
MibbitChat clientChat0     
Microco.smForum creation serviceSocial0     
Mincoin ToolsCrypto-Currency Mining PoolFinancial0     
MineBansGlobal Minecraft banning systemGames0     
MinubeSocial travel recommendation siteTravel0     
MixcloudRadio, DJ, and Podcast Hosting ServiceMusic0     
MockyREST API testing serviceTools0     
MomboSocial movie review serviceSocial0     
MonoloopSocial profile and communication serviceSocial0     
MuseliaMuseum mapping serviceEducation0     
MusescoreSheet music sharing serviceMusic0     
MuslimSalat.comMuslim prayer timesTools0     
MyGene.InfoAnnotated gene information serviceScience0     
MynaA/B testing serviceInternet0     
NameChkSocial media username availability toolSocial0     
National Institute on Drug Abuse Drug Screening ToolDrug abuse screening toolMedical0     
Nature.com OpenSearchScientific publication search serviceSearch0     
Navnelabarotoriets (Name Laboratory)Dutch baby name recommendationsRecommendations0     
NBIC PeregrineTerm recognition and tagging serviceTools0     
NeedishPrice quote serviceRecommendations0     
Nephics European VAT Number ValidationEU VAT information exchange system Government0     
New Zealand Post LocatorPostal location finderUtility0     
New Zealand Post TrackingNew Zealand parcel tracking serviceUtility0     
Next CallerCall center efficiency platformTelephony0     
NodePingWebsite and server monitoring serviceSecurity0     
Nokia MusicMusic content serviceMusic0     
NUSModsNational University of Singapore module information serviceEducation0     
Ocean Networks CanadaOceanographic dataScience0     
OCLC Virtual International Authority FileLibrary authority file serviceTagging0     
Octopart ElectronicsElectronics parts search servicesShopping0     
Odds24Sports betting odds comparison serviceSports0     
OffeneDatenGermany open government dataGovernment0     
olpcMAPEducation technology mapping serviceMapping0     
OnSugarBlogging serviceBlogging0     
OOchartsGoogle Analytics retrieval serviceUtility0     
Open Beer DatabaseDatabase of beer and brewery informationFood0     
Open Dems Polling PlacePolling place location serviceGovernment0     
Open Exchange RatesReal-time/historical currency exchange rates for developersFinancial0     
Open LibraryLibrary data accessReference0     
Open Meteo ForecastWorldwide weather forecasting serviceWeather0     
Open North RepresentDatabase and API for Canadian elected officialsGovernment0     
Open PHACTSPharmacological and physicochemical data Science0     
Opencaching.usUS geocaching databaseGames0     
OpenCNAMCaller ID data providerTelephony0     
OpenCorporatesCorporate information databaseReference0     
opengov.esSpain open government dataGovernment0     
opengov.fiFinland open government dataGovernment0     
OpenGovernmentState and local government dataGovernment0     
OpenKeyvalOpen key-value data storage serviceStorage0     
OpenSpendingGovernment and corporate finances trackerFinancial0     
OpenThesaurusOpen source German thesaurusDictionary0     
OstextOpen source translation repositoryTools0     
ParkWhizAccess to parking and event dataDatabase0     
Pearson Correlation CoefficientCalculator for the Pearson Correlation Coefficient ρTools0     
Pearson Food & DrinkEducational cookbook catalogFood0     
PelagiosAncient world geodataMapping0     
PersuasionCustomer-specific marketing serviceEnterprise0     
Philadelphia School InformationPhiladelphia School District information serviceEducation0     
Philly HoodsPhiladelphia neighborhood information serviceMapping0     
PhyloPicSilhouette images of living organismsScience0     
PictobarCrowd sourced personality information serviceSocial0     
PingeborgArtist promotion via QR tagsOther0     
Playnice.lyBug tracking serviceTools0     
PoligraftPolitical Entity Extraction ServiceGovernment0     
PonyCountdownMy Little Pony episode information and countdownEntertainment0     
Ponyfac.esMy Little Pony avatar platformFile Sharing0     
PopClogsGoal listing and sharing siteGoal Setting0     
PopyoularReview-based recommendation platformRecommendations0     
Postcodes.ioPostcode & geolocation serviceMapping0     
PostRankSocial engagement data analysis serviceFeeds0     
Powerhouse Museum CollectionOnline museum collection and datasetsEducation0     
PrintzelPhoto book creation servicePhotos0     
Project KenaiCollaborative open source development cloudProject Management0     
Project Kenai SunCloud Open Source Project Collaboration and Management ServiceProject Management0     
Proofeditors.comURL shortener with security featuresInternet0     
ProperSpellSpelling suggesting serviceDictionary0     
ProPublica ForensicsGeographic autopsy dataGovernment0     
ProPublica Free the FilesPolitical ad funding tracking projectPolitics0     
Prototype GeoIPIP-to-location serviceInternet0     
PublicStuffCivic engagement application Government0     
Punchfork RecipeRealtime recipe aggregator serviceFood0     
PunchTabCustomer loyalty program Other0     
Quotes on DesignRandom Quote GeneratorOther0     
QwikiInteractive wiki with mediaSearch0     
RapportiveContact information add-on for emailEmail0     
Rdio oEmbedMusic embedding serviceMusic0     
Reality Digital OPUSSocial media management serviceSocial0     
RealmEyeRealm of the Mad God game informationGames0     
RedboxMovie and game rental kiosk information serviceEntertainment0     
Regator SemanticContent aggregator and analysis serviceInternet0     
RequestBinHTTP request analysis serviceInternet0     
Richmond SunlightVirginia general assembly information aggregatorGovernment0     
Rochester Genesee Regional Transportation AuthorityRochester public mass transit information serviceTransportation0     
Roleplayer's Online Dice RollerDice rolling tool for roleplayersGames0     
Roll the DiceDice rolling toolTools0     
RoninAppOnline Invoicing and Time Tracking ServiceFinancial0     
Safe.mnURL shortening service with security featuresInternet0     
SC2RanksStarcraft 2 player rankingsGames0     
SciBiteDrug discovery information serviceMedical0     
Scotty AppMobile application backend serviceBackend0     
ScrapinghubWeb crawling and data processing servicesTools0     
SeatGeekTickets search serviceEvents0     
SeedFinderCannabis strain information serviceReference0     
SerialStamperRegistering and Digitally Timestamping FilesSecurity0     
ServiceUEvent and donation management serviceEvents0     
SetGetGo IP GeolocationIP geolocation by countryTools0     
SetGetGo Random WordRandom word generatorTools0     
SetGetGo Simple CryptoEncryption and decryption toolTools0     
Shared CountSocial Network Tracking ServiceSocial0     
SharedCountSocial URL analyticsInternet0     
ShareFileFile sharing and FTP serviceFile Sharing0     
ShotgunCreative studio pipeline serviceProject Management0     
Silo BreakerNews and information serviceNews0     
SilobreakerEnterprise content management and workflow support serviceEnterprise0     
SimplePie LiveAccess RSS and Atom feeds with JavaScriptFeeds0     
SkyBiometry Face Detection and RecognitionFace detection and recognition servicePhotos0     
SlideSixPresentation sharing serviceOffice0     
SocketLabs Email On DemandHosted on demand email serviceEmail0     
Solve360Online CRM serviceEnterprise0     
SpacialDB LayersCloud-based geospatial databaseDatabase0     
Spearman Correlation CoefficientMathematics toolTools0     
Spell OutVoice procedural alphabet translatorTools0     
SpringpadNotebook and notes application serviceOffice0     
Stack ExchangeQuestion and answer site networkAnswers0     
Stack OverflowProgramming question and answer siteAnswers0     
stdiconIcons for standard site or file typesInternet0     
StorageRoomCloud based mobile data CMSStorage0     
StorenvyOnline marketplace and store creation serviceShopping0     
Subsonic Music streaming serviceMusic0     
Sunlight Labs Real-time CongressNear Real-Time Information on the Current Congress SessionGovernment0     
Surescripts Million Hearts Risk Check LocatorCardiovascular screening searchMedical0     
TalentBinSocial recruiting serviceSocial0     
TapirBlog search serviceFeeds0     
TasteKidTaste discovery serviceRecommendations0     
TaxiFareFinderTaxi Fare Finding ServiceTransportation0     
TechSavvy Technology job listing siteJob Search0     
TelizeVisitor IP address geolocation serviceInternet0     
The Easy APIAccess multiple API's with one easy to use POSTTools0     
The Giving LabCharity and fundraising platform Tools0     
The Open Movie DatabaseMovie Database ServiceSearch0     
TheRockTradingVirtual Currency Exchange ServiceFinancial0     
TimeCampTime Tracking ServiceProject Management0     
to.lyURL shortening toolUtility0     
TradeHillInternet commodity trading serviceFinancial0     
TradeKingStock trading and investment serviceFinancial0     
Trail Outdoor Recreation InfoSports0     
Travel IQGerman travel booking serviceTravel0     
Traveller MapScience fiction RPG mapGames0     
Travis CIContinuous integration serviceInternet0     
TrendspottrSocial media trend monitoring and search serviceSocial0     
Trendy SkillsIT industry employable skills in demand databaseJob Search0     
Trunk.lyBookmarking service based on social link sharingBookmarks0     
Tube UpdatesUnofficial London transit serviceTransportation0     
TV Media TV ListingsNorth American TV program listings serviceEntertainment0     
TwakeConsumer recommendation serviceRecommendations0     
TwicsyTwitter Picture SearchSearch0     
TwitchTVVideo game broadcasting and chat communitySocial0     
TxtBearDocument Publishing ServiceTools0     
TyntInternet engagement measurement serviceInternet0     
UK PostcodesUK postcode lookup serviceReference0     
UNICEF 50/50International fund raising servicePayment0     
University of Oxford Systems StatusUniversity of Oxford IT services statusTools0     
University of RedditCollaborative learning communityEducation0     
University of WarsawUniversity and student information for Poland universitiesEducation0     
UnivisionSpanish language content providerEntertainment0     
UNLV LibraryLibrary catalogReference0     
Unofficial BMYcharityOnline giving and donations serviceFinancial0     
Unofficial FitocracySocial fitness platformGames0     
Unofficial Hacker NewsNews and comment serviceNews0     
Unofficial IMDbUnofficial search interface for Internet Movie Database (IMDb)Reference0     
Unofficial Virgin Money GivingOnline giving and donations serviceFinancial0     
Unshort.meLink unshortening serviceInternet0     
Uptime RobotWebsite monitoring serviceTools0     
Urban AirshipMobile push notification platformMessaging0     
US Census BureauUS Census data serviceGovernment0     
USA.gov Federal Agency DirectoryBilingual directory of U.S. federal agenciesGovernment0     
USA.gov Mobile App GalleryU.S. government apps information serviceGovernment0     
USC Event CalendarCampus event calendarCalendar0     
USC Map DataCampus map dataMapping0     
USC WebcamCampus webcam video and still photo accessVideo0     
USOSInformation management system for Polish universitiesEducation0     
ValueCommerce ProductOnline shopping serviceShopping0     
ValueCommerce TravelTravel web serviceTravel0     
Verisign DomainViewDomain registration trend toolInternet0     
ViewTextOnline text scraping serviceTools0     
VigLinkVigLink Affiliation ServiceAdvertising0     
VikiGlobal Television ServiceVideo0     
Vimeo AdvancedVideo and user information access serviceVideo0     
Vote.ca DistrictsCanadian Voting Place Locator ServiceGovernment0     
Walmart OpenWalmart online product information serviceRetail0     
Washington MetroWashington DC Metro data serviceTransportation0     
Washington Post NFL Statistics National Football League (NFL) statistics serviceSports0     
Washington Post TrovePersonalization and content engineNews0     
Washington State Corporations SearchWashington state corporations search serviceSearch0     
WassrTwitter for SecondLife microblogging serviceBlogging0     
Weather SourceWeather data serviceWeather0     
Web2PDFPDF creation serviceOffice0     
WebSEOAnalyticsSEO analytics serviceInternet0     
WebTranslateItTranslation management and software translation platformTools0     
WegoTravel search serviceTravel0     
WellynewsWellington New Zealand news searchNews0     
WePayOnline payment servicePayment0     
WickedAPIAPI-accessible developer toolsTools0     
WikimapiaEditable interactive mapsMapping0     
Wisconsin Center for the BookDatabase of Wisconsin books and authorsDatabase0     
WordReferenceMultilingual dictionary definition serviceDictionary0     
Wordstream Keyword Niche FinderKeyword suggestion serviceSearch0     
WorkbooksCRM for small businessesEnterprise0     
World AddressesAddress lookup and verification serviceReference0     
World of WarcraftWorld of Warcraft data serviceGames0     
WorldCat IdentitiesLibrary data accessReference0     
WorldCat xISBNISBN and book edition linking serviceReference0     
WPAPI.orgBlog statistics service for WordPress blogsBlogging0     
XplentyData processing serviceDatabase0     
Yahoo MemeMicroblogging platformBlogging0     
Yandex Rich ContentWebpage metadata delivery toolInternet0     
Yandex SpellerFind and fix spelling mistakesTools0     
Yandex TranslateFree text translation serviceTools0     
YIFY-TorrentsMovie torrent siteFile Sharing0     
Yonda4Reading lists and recommendationsRecommendations0     
Zoom.itPhoto conversion and sharing servicePhotos0     
ZootleSales, inventory, and contact management serviceEnterprise0     
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APIs, mashups and code. Because the world's your programmable oyster.

John Musser
Founder, ProgrammableWeb

Adam DuVander
Executive Editor, ProgrammableWeb. Author, Map Scripting 101. Lover, APIs.